8212819 has 8 divisors (see below), whose sum is σ = 8724240. Its totient is φ = 7704576.

The previous prime is 8212811. The next prime is 8212837. The reversal of 8212819 is 9182128.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8212819 - 2³ = 8212811 is a prime.

It is a super-2 number, since 2×8212819² = 134900791853522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8212811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6547 + ... + 7699.

It is an arithmetic number, because the mean of its divisors is an integer number (1090530).

Almost surely, 2^8212819 is an apocalyptic number.

8212819 is a deficient number, since it is larger than the sum of its proper divisors (511421).

8212819 is a wasteful number, since it uses less digits than its factorization.

8212819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1589.

The product of its digits is 2304, while the sum is 31.

The square root of 8212819 is about 2865.8016330514. The cubic root of 8212819 is about 201.7579936815.

The spelling of 8212819 in words is "eight million, two hundred twelve thousand, eight hundred nineteen".